Depositing-machine.



FL 6.5111511110. DEPOSII'ING MACHINE. APPLICATION FILED JULY 25.1918.

1,294,542., Peteneed Feb.18,1919.

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FERDINANDO G. SALERNO, OF CHICAGO, ILLINOIS.

-DEIOSITING-MCHINE. I

Specification of Letters Patent.' Patented Feb. i3, 1919 Application ledJuly 25, 1918. Serial No. 246,645.

I To all whom t may concern:

Be it known that I, FERDINANDO Gr.

'ing-Machines, of which the following is a specification. A v l Mypresent invention is intendedto be ap- 410 plied to and form a part of adepositing machine of the 'general construction shown in my pendingapplication No. 834,780, filed l April 27th, 1914, and more particularlyrelates to certain modifications and improvements connected with thenozzles of the depositing mechanism of the machine. It has been foundthat with some forms of concentric fixed double nozzles heretoforeemployed, especially those in which the annular opening between thenozzles is restricted,

small lumps, or coagulated-.or hardened fragments of the confectiom orundissolved particles of the material being used will Sometimes lodgebetween the nozzles and interfere with the free and Vuniform passagel ofthe confection, maln'ng it necessary to clean the nozzles while themachine.stands idle to obtain a perfectlproduct, and the ob-' ject ofthe present invention is to provide suitable andl efficient mechanismwhich will automatically keep the orifices of the nozzles free andunobstructed. To this endI have vdevised and invented the nozzlestructure and means for operating V the movable mem 35 ber thereofhereinafter described, yand my invention consists in the combination andorganization of coperating parts constituting such mechanism, theessential elements of the same being more particularly pointed Of thedrawings, Flgure 1 is a side-view of a portion of thehoppers andadjacent portions of a depositing machine to which my invention isapplied; Fig. 2 is a cross The same reference characters indicate thesame parts in all the figures of the drawings.

It will be unnecessary for an understanding of my present invention todescribe the general construction of the depositing machine to which isapplied or of which it forms a part, further than to state that itincludes an endless lbelt 1 arranged to be shifted with a step-by-stepmovement over the surface of an oscillating table 2 which isintermittently lifted to a position adjacent the depositing nozzleswhile deposits of the two kinds of confection are being depositedthrough the double nozzles on rows of cakes fed into alinement'with thenozzles, and then llowered as the flow is broken, after which the row,acted upon .is carried forward by the movement of the belt and anotherrow fed into position to receivey deposits when the belt is next lifted.The .two hoppers A and B may conveniently be constructed of lthe twocastings 3 and 4, the casting 3 being formed with a back wall 5 and sidewalls 6 to which is secured a sheet metal plate 7 to make up the largeror marshmallow hopper A, and the casting 4 being formed with a back wall8 and side walls 9 to which is secured a sheet metal plate 10 to make upthe smaller orjelly hopper B. The lower parts 'of the side walls of thetwo castings meet to form a tight joint, and internally are formed withmeeting vvertical flanges 11 by which they are bolted together, but theback walls are offset or separated from'each other to 45 section of thenozzle bar on a larger scale forcing chamber through long inlet portsv13 and 14v respectively opening into the associated forcing chambernear its bottom. The larger forcing chamber is closed at'its top by arectangular piston 14a and a thinner rectangular supply valve 15governing the 1015 port 13, and the smaller forcing chamber is closed bya corresponding piston 15 and supply valve 17. A rectangular plate 18form- 1ng a s hut-ofl" valve is arranged to reciprocate horizontally ina slideway formed in the l taken centrally through one of the doubledepositing nozzles and longitudinally of the machine; Fig. 3 is a planview of one4 endl of the nozzle bar,l partly broken away; Fig. 50 4 is abroken sectionof the same,'taken lon-v gitudinally of the nozzle bar(transversely of the machine) on the line 4 4 of Fig. 2; Fig. '5 is aperspective ofthe inner nozzle member, detached from the nozzle bar; and55 Fig. 6 is a perspective of the outer nozzle.

casting 3, and a similar shut-off valve 19 is provided in the casting 4.As in the case of the nozzle bar described in my prior application, tlienozzle-bar or nozzle-carrying member of my present novel mechanism isseated in a dove-tailed recess formed at the bottom of the twocastings 3and 4, such seat being formed partly in one castingl and partly in theother.

By suitable connections unnecessary to be described the main plunger orpiston of each forcing mechanism is caused to descend gradually fromuppermost position, the supply va-lve at the time closing the supplyport,

and the shut-off valve being in outermostposition. After the pistonreaches lowermost position and as soon as it begins its upward strokethe confection is sucked back into each of the group of nozzles to whichit is connected and which will hereinafter be described in detail, thesupply valve remaining momentarily closed and the shut-off valve open,after which the shut-ofi' valve quickly shifts to inner or closedposition andv the supply valve uncovers the inlet port. The upwardmovement of the main piston-oi' plunger now draws a charge of confectioninto the forcing chamber, and the supply returns to close the inlet portin advance of the downward forcing stroke of the main piston, theshut-off valve also shifting Vto l open or outer position.

The 'novel nozzle structure and associated operating mechanism whichconstitutes my present invention may now be described. To

the bottom nozzle bar 20,` seated as abovek described in the dove-tailedrecess formed at the bottom of the two hopper castings, is secured aseries of fixed inner nozzles 21 which are formed with externally screwthreaded upper portions and top flange portions 22 by which they aresecured to the nozzle bar through screws 23. Coperating with the nozzles21( is arranged a corresponding series of rotatable outer nozzles 24formed with internally threaded upper portions ,25 which engage thethreaded portions of the inner nozzles and the peripheries of whichadjacent the top are each formed with a gear 26. The lower end of theinner nozzle is beveled, as shown, and the orifice of the outer nozzleof such size and shape thatv the longitudinal movement of such nozzlewillA vary the opening between the two nozzles. Preferably the screwthreads of the nozzle are' of rather steep pitch in order to obtain aproper degree of longitudinal throw, and are double in order that theymay be of moderate size. The inner nozzle communicates directly with theforcing chamber in the hopper casting A, and the space between theouterand inner nozzles is in communication with the forcing chamber inthe casting B through a series of vertical channels 27 and a circulargroove 28 formed in-the the proportions and inner nozzle member andachannel 29 and port 30 formed in the nozzle bar.

ItA is obvious that rotation to and fro of the outer nozzles 24 underproper adjustment will raise and lower them to open and close (or nearlyclose) the annular opening between them, and' that the: closingmovelnent will crush any interposed lumps or fragments of material, withthe result of Y keeping the opening free and unobstructed. Simultaneousrotation of all these nozzles is effected by means of a rack bar 31engaging the gears 26 formed upon them, this rack bar being slidinglysecured to the nozzle bar by guide blocks 32 secured to said nozzle bar.The rack bar 31 in the present instance reciprocates through a train ofconnections actuated by a lever 33 which is caused to oscillate by meansof a cam disk 34 secured to a rotating shaft 35, all of such elementsbeing parts of the machine of my aforesaid application. Secured to thelever:l 33 is a short pivot block 36, to which is pivotally connectedthe lower end of a connecting rod 37, the upper end of said rod beingpivoted to one end of \a bell-crank lever 38 which is pivotally mountedin a bracket 39 secured to the frame of the machine. The other arm ofthe bell-crank is pivoted to one end of a link 40, the other end of thelink being connected to a pivot bolt 41 to the rack bar. The lever 33 isone vof the train of connected elements through which the shut-ofi'valve 19 hereinbefore mentioned is reciprocated, and the arrangement ofthe parts is such that the o uter nozzles 24 will be lowered to openvthe annular spans between the outer Yand inner nozzles at the time thatthe shut-off valve is open. f Y

In the machine of niy'prior application above mentioned, provision ismade for changing the nozzle bars there described (corresponding changesbeing made if Vrequired `in the feeding mechanism and in my presen-tinvention it is contemplated that interchangeable nozzle bars, varyingin l spacings of the nozzles may likewise be used, it being onlynecessary to remove ythe bolt 41 to permit the nozzle bar structure,including the rack bar, to 'be removed as a whole. W'hile I have showntlie gear teeth 25 as extending entirely around the nozzle 24, therotary 'movement of such nozzles is in practice but slightly overone-third of a circle, and a properly adjusted and arranged segmentalgear of4 corresponding length would therefore be sufficient toaccomplish the raising and lowering of the nozzles.

The ordinary form of screw-tlireaded engagement between the inner andouter nozzles shown inthe drawings is sufciently close to prevent upwardleakage between the nozzles while raising and lowering the nozzles, 'butany form of spiral groove or 130 slotted connection with a sliding jointbetween such nozzles would constitute an etplivalent screw structurefulfilling the same purpose and raising and lowering the rotatablenozzles, and I therefore do not intend my claims to be limited tothespecific screw-threaded construction shown.

I claim: 1. In a machine of the class described and having twoconfection hoppers, an inner sta- .tionary nozzle communicating with onehopper, an outer rotatable nozzle surrounding said inner nozzle andhaving screw-threaded engagement with a. stationary part of the machine,the space between said nozzles being in communication with the otherhopper, and means for rotating said outer nozzle to restrict and enlargean annular opening between the ends of said nozzles.

2. In a machine of the class described and having two confectionhoppers, an inner stationary nozzle communicating with one hopper, anouter rotatable nozzle surrounding said inner nozzle and havingscrewthreaded engagement therewith, the space between said nozzles beingin communication with the other hopper, and means for rotating saidouter nozzle to restrict and enlarge an annular opening 'between the eends ot said nozzles.

3. In a machine 'of the class described and having two confectionhoppers, an inner nozzle communicating with one hopper, an outer nozzleconcentric with said inner noz# zle, the space between said nozzles'being in communication with the other hopper and one of said nozzlesbeing stationary and the other being rotata'ble through screw-threadedengagement with a stationarY part of the machine and means for rotatingsaid rotatable nozzle to restrict and enlarge the opening between theends of said nozzles.

l. In a machine of the class described and having two confectionhopper-s, Aa nozzlecarrying member equipped with a Series of rigidlysecured nozzles communicating with one hopper, a corresponding series ofconcentric rotatable nozzles, having screwthreaded engagement with afixed part of the machine, the annular space between each fixed androtatable nozzle being in communication with the other hopper, and acommon actuating member operatively connected to all of said rotatablenozzles to rotate them.

5. A nozzle structure according to claim l in which the rotatablenozzles are formed with peripheral gear teeth and the actuating mem'berconsists of a rack bar engaging such teeth.

6. A nozzle structure according to claims l and '5 in which the outernozzles each have an upper portion formed with a peripheral gear andinternally threaded. and the inner nozzles each have externally threadedupper portions engaging the threaded portion of the associated outernozzle.

FERDINANDO G. SALERNO.

